确定单侧先天性上肢截肢的儿童和成人是否可以使用模式识别(PR)技术控制具有多自由度(DOF)的肌电假体。
对7名患有单侧先天性经桡骨截肢的参与者(9-62岁)进行了残肢和健全侧肢体的测试,以确定使用一组表面电极捕获的肌电信号控制虚拟假体的熟练程度,这些信号使用PR技术进行处理。通过称为目标成就控制测试的虚拟环境游戏来衡量熟练程度,试验方案要求参与者将日益复杂的假体体位与1,2和3DOF相匹配.
所有参与者在测试期间用残肢在1、2和3自由度成功创建了PR校准,比较残余上肢与声音上肢时,没有观察到校准准确性的差异。残余肢体和健全肢体之间的目标成就控制测试的平均完成率没有差异。
患有先天性上肢截肢的参与者实现了多自由度假体的PR控制校准,其PR校准的熟练程度和质量结果与他们的健肢相当。在儿童和成人中都观察到了这种能力。这表明单侧先天性经桡骨截肢的儿童和成人有可能受益于PR控制的肌电假体。
这项研究的结果强调了该人群中患者从PR控制的肌电假体中受益的潜力。患有单侧先天性上肢截肢的人可以考虑提供这项技术并参加未来的研究活动。
To determine whether children and adults with unilateral congenital upper limb amputation can control myoelectric prostheses with multiple degrees of freedom (DOF) using pattern recognition (PR) technology.
Seven participants (age 9-62 years) with unilateral congenital transradial amputation were tested on both their residual and sound side limbs to determine proficiency in controlling a virtual prosthesis using electromyographic signals captured by an array of surface electrodes that were processed using PR technology. Proficiency was measured through a virtual environment game called the target achievement control test, in which the testing protocol asked participants to match increasingly complex prosthesis postures with 1, 2, and 3 DOF.
All the participants successfully created a PR calibration at 1, 2, and 3 DOF with their residual limb during testing, and no differences in calibration accuracy were observed when comparing the residual versus sound upper limbs. No differences were noted in the mean completion rate on the target achievement control test between the residual and sound limbs.
Participants with a congenital upper limb amputation achieved PR control calibration of multi-DOF prostheses with proficiency and quality results of PR calibration that were comparable to those of their sound limb. This capability was observed in children as well as in adults. This demonstrates the potential for children and adults with a unilateral congenital transradial amputation to benefit from myoelectric prostheses with PR control.
The results from this study highlight the potential for patients in this population to benefit from myoelectric prostheses with PR control. Persons with unilateral congenital upper limb amputations can be considered for provision of this technology and enrollment in future research activities.